I found the following users who may fit your language exchange criteria:

Username	Date	Post Link	Relevance	Offered Matches	Sought Matches
u/sewage_water	2021-07-03	Post	8	Spanish, Japanese	Spanish
u/milowastaken	2021-06-11	Post	7	Spanish (Native)	English, Spanish
u/expgrowth	2021-06-23	Post	7	Spanish	English, Spanish
u/yoshida_toshi	2021-06-14	Post	6	Spanish (Native), Japanese	---
u/5prima3prima	2021-08-13	Post	5	Spanish	English

Please feel free to comment on the above posts to get in contact with their authors.

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^{Hermes: a bot for r/Language_Exchange | Documentation}